Folding paper box.



No. 647,897. Patenfed A pr. l7, I900;

. A. L. KRAMER;

FOLDING PAPER BOX.

(Apph ton flledFb 6 1900) 2 sheets sheet I.

(No Model.)

INVENTOR ANDREW LEWl' KRAMER H l6 ATTORNEYS.

0 o N U, r p A d B t n e t a P X .0 RB E Mn AP BA KP w A w .0 F 7 9 7 46 0 (Application filed Feb. 5, 1900.)

(No Model.)

INYENTOR ANDREW LEWIS KRRMER HIS ATTORNEYS.

PATENT FFICE.

ANDREW LEWIS KRAMER, OF NEW YORK, N. Y.

FOLDING PAPER BOX.

SPECIFICATION forming part of Letters Patent No. 647,897, dated April17, 1900.

Application filed February 5 1900. Serial No. 4,027. (No model.)

To aZZ whom it may concern:

Be it known that I, ANDREW LEWIS KRA- MER, a citizen of the UnitedStates of America, and a resident of New York city, borough of Brooklyn,State of New York, have invented Improvements in Folding Paper Boxes, ofwhich the following is a specification.

The object of my invention is to provide a simple,economically-manufactured, and durable folding paper box which withoutgluing or stitching the ends can be used for finely comminuted orpulverized materials such as flour, starches, sodas, spices, &c. withoutdanger of the contents sifting out and which can be opened and reclosedwithout destroying the box and without liability of dust getting in.

In the accompanying drawings, Figure l is a perspective view showing thebox closed at one end, but open at the other and ready to receive itscontents. corresponding perspective views illustrating the successivesteps in the closing of the flaps. Fig. 5 is a perspective Viewillustrating the manner of reclosing the box without the fourth flap,and Fig. 6 is a view of the cut blank for the box.

In the drawings I have shown the blank and box as provided with myconstruction and arrangement of closing flaps at both ends of the box;but it will be understood that my invention may be employed at one endof the box only, preferably at what may be called the upper end of thebox, while any other suitable construction of the sealing-flaps with orwithout the use of paste or glue may be employed at the other end. Itwill suffice in the following explanation of my invention to describethe construction and mode of manipulating the flaps at one end.

As will be seen by reference to Fig. 6, the blank for the box is cutfrom one sheet of paper-board or other suitable material with but verylittle waste. The body of the box is divided by score-lines 00 into fivesections A, A A A and 5, the first four being intended to form the fourside walls of the box, while the fifth section 5 constitutes a narrowflap, which is to be permanently glued or otherwise secured to the edgeof section A at Figs. 2, 3, and 4C are the opposite end of the blank, soas to make a tubular body for the box.

Each of the four adjoining sections, which form the walls of the box,has at the end where my invention is employed a flap which forms anextension of its section with an intermediate score or folding line y.Of these the shortest flap .3, which is shown in this case as on thesection A is equal in length and width to the cross-section of thetubular body of the box when it is expanded so as to present the usualrectangular cross-section. The two next flaps 1 and 2 on one side of theflap 3, in this case shown on the left of the flap 3 and as extensionsof the sections A A of the body of the box, are of equal length witheach other, but longer than the flap 3 by the length of their respectivetongues I). These tongues are separated from the bodies of theirrespective flaps by score or folding lines 2. The remaining flap 4 onthe other side of the flap 3 and shown as an extension of the section Aof the body of the box is also longer than the flap 3 to the extent of atuck-in tongue at, which is preferably provided with beveled or roundedcorners and may be alittle shorter than the tongues 5. Between thistongue (1, and its flap 4, is a folding or score line a. The material ofthe blank is severed through between these flaps 1 2 3 4, as indicatedby full lines in Fig. 6; The folding or score lines are indicated bydots or dashes.

Fig. 1 illustrates the condition of the box when its tubular body hasbeen expanded to rectangular cross-section, and it is supposed that thebottom has been closed. To close the top, the tongued fiap l is turnedover, as indicated by the arrow in Fig; 1, until it lies at right anglesto the side walls of the box, as shown in Fig. 2, when its tongue I)will lie against the inner face of the opposite side wall of the box.Then' the tongued flap 2 is folded over in like manner, as indicated bythe arrow in Fig. 2, until it reaches the position shown in Fig. 3, thetongue I) of this flap 2 being tucked in between the edge of the flap 1and the opposite side wall,which carries the flap 3, the said tongue I)of the flap 2 then bearing against the inner face of that side wallwhich carries the flap The tongueless flap 3 is then folded down; asindicated by the-arrow in Fig. 3 and asshown in Fig. 4, over the top ofthe flap 2. Finally the flap 4 is folded down over the top of the otherfiaps, and its tuck-in tongue a is introduced between the under side ofthe flap 2 and the first folded flap 1, so as to embrace theiedges ofthe two flaps 2 and 3 and so look the flaps together. This simple mannerof closing and locking the box gives a very secure sealing action, andif the flaps are cut to proper proportions with reference to thecross-sectional area of the tubular box the box will be practicallysiftless, aswell as strong and durable.

Nevertheless vit can be easily opened and closed again as often asdesired,thereby pre-' ca-n nevertheless be reclosed with sufficientcompleteness to exclude dust from the conface of the-oppositeside wallof the box.

. -Thenlthe tonguelessltlap3 will be folded down,

' and' 'finally the tongued flap. 1 will. be @fo'lded been torn.

over-on the-toplrvand its tongue b-introduced; between the edges of theflaps 21331161 13116 'faceof'itheside wall from which theiflap 4hasasrftlessgclosure is not 'necessary the flap t .mayhe omitted in thefirst instance,-astshown in Fig 5,.and in that .case the three fiapswillr be foldeddown in the orderidescribed with ireference'to that figure.

Tami-aware" that tubular folding boxeshave In a tubular folding boxinwhich been provided with flaps having tongues but I .believe it is newto construct a tubular folding ,box with the combination of flaps andtongues which I have described and which has the merit of simplicity,strength, durability, andwefficiency.v

' I claim as my invention- 1. A tubular folding box with four sidewalls, one of which'is provided with a tongueless flap,-while anadjacent side wall and also the one opposite have flaps with tongues tobear against. the side walls and the fourth side wall has a flap with'atuck-in tongue which embraces theedg'es of two of the other flaps. r Y

2. A blank for a folding box'fh aving a pluralityiot sections; to be.united'to: make a tubular box, four of the sections having flaps toform one end of'the box; two flaps land 2 having tongues b b to bearagainst the inner faces ofl'theiside walls opposite, flap 3 beingtongueless and the fourth flap 4 havinga tuckintongue to embrace andlock the edges of two of. the other flaps, substantially as described. ii y 3. A tubular folding box with four side walls, one of whichisprovidedwith a tongue- -lcss. flap, and .anotherhas a flap with; atongue tot'bear againstthe-opposite sidewall, and; anif other has a flapwith-a tuck-in tongue to venlbrace the edges: of two of the other"flaps.

4. A, tubular folding box with four side walls, provided at one endwitha plulrality offlaps: to close that end of the'bo'x; one of said;flaps having'a tuck-in: tongue membrane and thereby l-ock'the. ed gesoftwo of the; other flaps, substantially as described.

In testimony whereof I have signed my name to th'isspecifi'cation in thepresence of twosulbseribin-g'witnesses. 1 7

1 ANDREW LEWIS KRAMER. Witnesses: f,

'ADELINE-L. KRAMER,

HUB-ERT I-Iowson.

